Statement Of Cash Flows [Abstract]
| Concept |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
2021-10-01 to 2022-09-30 |
As at 2022-09-30 |
As at 2021-09-30 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Income taxes paid (refund), classified as operating activities | — |
150,000,000
EUR
|
185,000,000
EUR
|
— | — |
| Other inflows (outflows) of cash, classified as operating activities | — |
384,000,000
EUR
|
48,000,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
721,000,000
EUR
|
931,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
292,000,000
EUR
|
44,000,000
EUR
|
— | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
101,000,000
EUR
|
128,000,000
EUR
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities | — |
389,000,000
EUR
|
263,000,000
EUR
|
— | — |
| Purchase of other long-term assets, classified as investing activities | — |
160,000,000
EUR
|
151,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
46,000,000
EUR
|
320,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from borrowings, classified as financing activities | — |
3,493,000
EUR
|
953,000,000
EUR
|
— | — |
| Repayments of borrowings, classified as financing activities | — |
3,672,000
EUR
|
1,655,000
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
591,000,000
EUR
|
572,000,000
EUR
|
— | — |
| Interest paid, classified as financing activities | — |
60,000,000
EUR
|
48,000,000
EUR
|
— | — |
| Other inflows (outflows) of cash, classified as financing activities | — |
17,000,000
EUR
|
7,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
820,000,000
EUR
|
1,308,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
145,000,000
EUR
|
696,000,000
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
89,000,000
EUR
|
47,000,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
234,000,000
EUR
|
649,000,000
EUR
|
— | — |
| Cash and cash equivalents |
591,000,000
EUR
|
— | — |
825,000,000
EUR
|
1,474,000
EUR
|